I have loaded for 2 Iikka T3 in a 300wsm, the owners wanted to use 165gr bullets. Found hunting accuracy with all 3 bullets they chose to develop with first; Nosler Parts (shot good), Nosler Accubonds ( ok in one and superb in the other) and Barnes TSX(shot very good). In both the powder settled on was H4831SC, WLRM primers and win brass. The one fella used the Ab and has taken an elk & deer with it. The other went with a TSX but has yet to dump one into a biggame animal.Also loadfor a browning abolt in a 300wsm using a 180gr AB under RL22, GM215M fed primers and Win brass. He has taken 2 elk, 1 cow moose and several deer with this load. Routinely shoots MOA or better, excellent all around prairie load IMO shoots, high BC and seems to work on near everything we have to hunt here in Saskatchewan. However what shoots in your rifle maybe different so pick a bullet (s) suited to the purpose and shoot them.
As far as scope forthese 3 rifles:1- 3x9x40 elite 3200, 1 - VXIII 3.5x10x40 & 1 Conquest 3x9x40. All duplex reticles(standard cross hairs). Of thesemypick- Zeiss! Optically its great, features/function is good, rock solid (from my experience) and the 4" of constant ER with the 3x9x40for the lite and 300wsm combo would be good

. Like a bullet you must also try optics on your own to know which one is best for the dollars you have budgeted.